# What is the equation of the line tangent to #f(x)=(x^3 - 1) / x# at #x=1#?

To find the slope, use

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The equation of the line tangent to f(x)=(x^3 - 1) / x at x=1 is y = 3x - 2.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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